Ornamental stitch sewing machines



Oct. 22, 1957 M. R. PERLA 2,810,360

' ORNAMENTAL smcn SEWING MACHINES Filed Dec. 8, 1954 5 Sheets-Sheet 1 l l l l i i 1 s I l l l INVENTOR Martin R. Perla ATTORNEY W7 gaw Oct. 22, 1957 M. R. PERLA 2,810,360

ORNAMENTAL STITCH SEWING MACHINES Filed D66. 8, 1954 5 Sheets-Sheet 2 INVENTOR Mar tin R. Perla WITNESS ATTORNEY Oct. 22, 1957 M. R. PERLA 2,810,360

ORNAMENTAL STITCH SEWING MACHINES Filed Dec. 8, 1954 5 Sheets$heet 3 INVENTOR l5 :3? Mar fin R. Perla wn'mass BY 0 ,44

w AORNEY Oct. 22 1957 M. R. PERLA 2,810,360

ORNAMENTAL STITCH SEWING MACHINES Filed Dec. 8, 1954 5 Sheets-Sheet 4 INVENTOR Mar tin R. Perla 1/, 1, TQRNEY Oct. 22, 1957 M. R. PERLA 2,810,360

ORNAMENTAL STITCH SEWING MACHINES Filed Dec. 8, 1954 5 Sheets-Sheet 5 mvsufok Martin R. Perla ATTORNEY ORNAMENTAL STITCH SEWING MACHINES Martin Richard Perla, Bridgeport, Conn assignor to The Singer Manufacturing Company, Elizabeth, N. 1., a corporation of New Jersey Application December 8, 1954, Serial No. 473,855

12 Claims. (Cl. 112158) This invention relates to improvements in ornamental stitch sewing machines and has for an object to provide such a machine with novel mechanism whereby the machine can be made to produce a large number of ornamental designs without any change in the construction of the machine.

A more specific object of the present invention is to provide a zigzag stitch type ornamental sewing machine with a plurality of different response producing records for controlling the actions of the zigzag stitch mechanism and means whereby such records may be selectively employed in different combinations for effecting various patterns of ornamental stitches.

A more specific object of the present invention is to provide a zigzag stitch sewing machine with novel mechanism including a plurality of rotary pattern cams and a plurality of cam tracking devices which function singularly or in combination to impart sidewise zigzag motions to the needle.

The above noted objectives have been accomplished by providing a zigzag type sewing machine, in addition to a removable rotary pattern cam located outside the confines of a sewing machine frame, with a nest of five rotary pattern cams which are secured together and rigidly mounted upon a cross-shaft which carries the usual removable cam. This nest of pattern cams is disposed within the confines of a sewing machine frame and it is not adapted normally to be removed from the machine by the operator. This machine is further provided with a first cam follower which is adapted to track the removable cam for the purpose of converting the rotary cam motions into lateral needle motions. In addition to this first cam follower the machine is provided with five supplementary cam followers of which each is adapted to track a respective one of the five nested pattern cams. These six cam followers are so arranged that any combination thereof may be operably positioned against their respective associated cams so that various combinations of cam pattern movements may be transmitted to the needle-bar, during a continuous predetermined stitching cycle.

With the above and other objects in view, the invention comprises the devices, combinations and arrangements of parts hereinafter described in connection with the accompanying drawings, which illustrate the preferred embodiment of the invention from which the several features of the invention and the advantages attained thereby will be readily understood by those skilled in the art.

In the drawings:

Fig. 1 represents a side elevation, partly in section, of a sewing machine containing the present improvements.

Fig. 2 represents a rear side elevation of the bracketarm of the machine disclosed in Fig. 1.

Fig. 3 represents a top plan view of a portion of the bracket-arm with the bracket-arm cover removed.

Fig. 4 represents, on an enlarged scale, a sectional view taken substantially along the line 44 of Fig. 3.

2,810,356 Patented Got. 22, 1957 Fig. 5 represents, on an enlarged scale, a sectional view Fig. 6 represents a left-hand end view of the sewing machine disclosed in Fig. 1 but with the face plate removed.

Fig. 7 represents, on an enlarged scale, a sectional view taken substantially along the line 77 of Fig. 3.

Fig. 8 represents, on an enlarged scale, a sectional View taken substantially along the line 88 of Fig. 3.

Figs. 9 and 10 respectively represent detail views of the needlegate and its vibrating pitman and diagrammatically illustrate the effects of the pitman controlling mechanism which causes the needle to vibrate across and from one side of the neutral position of nonvibration of the needle.

Figs. 11 and 12 respectively represent cross-sectional views of the adjusting shaft and supporting bushing with the neutral position controlling lever at different limits of movement in the respective views.

Fig. 13 represents a modified form of rotary cam.

The present improvements are illustrated in the drawings and herein described as embodied in a zigzag stitch sewing machine of the type disclosed in the United States patent of Alfred Tiesler, No. 2,014,916, dated September 17, 1935. Furthermore, the manually controlled adjusting means employed in connection with the present sewing machine for effecting lateral movements of the needle is disclosed and described in detail in the United States patent application Serial No. 356,928, filed May 25, 1953, by Ralph E. Johnson and Alexander F. Kerr, now Patent No. 2,713,838, dated July 26, 1955.

Referring to the drawings, the sewing machine illustrated has a bed-plate 15 aifording a work support from one end of which rises the hollow standard 16 of a bracket-arm 17 overhanging the bed-plate and terminating at its free end in a hollow head 18.

The bracket-arm 17 is open at its upper portion so as to form a substantially trough-shaped unit and this opening, designated in Fig. 3 by the numeral 19, is adapted to be closed by means of a cover-plate 20 which is removably secured in position by a plurality of screws of which one, 21, is shown in Fig. 1.

Rotatably journaled in suitable bearings provided in the bracket-arm 17 is a horizontally disposed main shaft 22 extending lengthwise of the bracket-arm and carrying at one end a driving pulley 23. At its opposite end, the main shaft 22 carries a counter-balanced crank 24 provided with a crank-pin 25 connected by a jointed link 26 to a collar 27 secured upon a vertically disposed needlebar 28. This needle-bar mechanism is located within the hollow head 18 which is closed at its forward end by means of a face-plate 29. V

The needle-bar 28 carries at its lower end an eyepointed needle 30 and is journaled for endwise reciprocation in bearings provided in a substantially T-shaped vibratory needle-bar gate 31. The gate 31 is pivotally hung upon a pair of oppositely disposed pintle screws 3232 supported within apertures provided in the op-. posite wall portions of the hollow head 18 so as to provide for swinging movements of the gate about a substantially horizontally disposed axis.

Cooperating with the needle 30 below the bed-plate 15 and in the formation of lock stitches is a loop-taker 33 supported for rotation in a vertical plane parallel to and rearwardly of the plane of needle vibration. The looptaker 33 is rotated twice for each complete needle reciproeation by driving connections with the main shaft 22. Feeding mechanism of the lower four-motion type is provided for advancing work past the needle in a direction transverse to the plane of needle vibration, and a presserfoot 34 is secured to a presser-bar 35 so as to oppose the work-engaging portion of the feeding mechanism in a conventional manner. i i

Extending horizontally from an intermediate portion of the needle-bar gate 31 is a boss 40 to which is pivotally secured by means of a clamp-screw 41 one end portion of a' link or pitman member 42. The ,pitman 42 is disposed horizontally and externally at the rearward side of the bracket-arm 17. As is best disclosed in Fig. 2, the other end of the pitman 42 is pivotally connected -hymeans of a shoulder screw 43 to a link member 44, the upper end portion of which is formed in the manner ofa fork so as to provide two spaced arms 45 and 46 of which each is apertured, as at 47, so as to be pivotally connected by means of a pin 48 to one end portion 49 of a cam-actuated bell-crank lever which also receives the pin 48. .A set screw 50 threaded within the arm portion -46 locks the pin 48 in its proper position within the forked end portions of the link 44.

The lever 49 is pivotally mounted within the bracketarm 17 by means of a horizontal stub shaft 51 which extends transversely across the sewing machine bracket-arm to be received within oppositely disposed apertures 52 and 53 formed in the bracket-arm walls. Aset screw 54 locks the shaft 51 in its proper position within the bracket-arm.

. Projecting upwardly and laterally from the bell-crank arm 49 is a second arm 60 carrying an offset portion 61 which extends through an aperture 62 formed within the cover-plate 20 so as to be positioned outside the confines of the sewing machine frame. As may be best understood by reference to Figs. 1 and 3, the arm portion 61 is provided with a cam follower, generally designated by the numeral 63, which cam follower will be hereinafter described in further detail.

The cam follower 63 is forced into engagement with'the periphery of a rotary cam 64 by means of a leaf spring 65 of'which one end portion is secured by means of screws 66, 66 to a cross brace 67 formedwithin the sewing machine bracket-arm, while the other end portion is formed as an upturned hook 68 which is disposed directly beneath the left-hand end portion of the bell-crank lever arm 49, as viewed in Fig. 1, so as to bias the lever in a clockwise direction thereby to urge the cam follower 63 downwardly into engagement with the periphery of the cam 64.

Referring particularly to Figs. 1, 3 and 7, the cam 64 is provided with an aperture 69 so that the "cam may be removably disposed over the threaded end portion 70 and against the shouldered portion 71 of a cam shaft 72. The cam shaft 72 has its end shoulder portion 71 provided with a pin 73 which is received within an aperture 74 for the purpose of locating the cam in its proper position upon the cam shaft 72. A thumb screw 75 is adapted to be received over the threaded end portion 70 of the cam shaft for the purpose of locking the cam 64 :inits operable position against the shoulder 71.

The cam shaft 72 is journaled in the front and rear walls of the bracket-arm 17 in bearing bushings 76 and 77, said cam shaft 72 being-disposed above and horizontally transverse to the main shaft 22. A spiral .gear 78 carried by the main shaft 22 drives a spiral gear 79 secured upon the cam shaft 72 whereby the latter is rotated, for example, at one-eighteenth the speed of rotation of the main shaft 22.

From the foregoing, it will be understood that, during the operation of the machine the cam '64 being carried by the rotary stub shaft 72 will rotate and thus actuate the cam follower 63 to the end that the bell-crank lever 49-60 will pivot about its pin -1 so that the lever '49 will rise and fall in a manner as dictated by the peripheral shape of the cam and, thus, the pitman 42 through the medium of the depending link member 44 will have its left-hand end portion, as viewed in Fig. 2, shifted up and down.

In order to translate the lateral vibratory movements of the :pitman 42 into effective endwise r'ecip'roca'tory movements, thereby to impart swingingmov'ement's to the needle-bar gate 31, a guide block 80 (see-Figs52and '8") gardless of the neutral position adjustment of the con-,

is secured upon the pitman 42 by a pin 81, which guide block is shiftably disposed within a guideway 83 constituted by a rearwardly open slot formed on the outer or rearwardly exposed face of an arcuatelyand bodily adjustable guide head 84. The guideway 83 and the block 80 preferably have straight sides but, if desired, the guideway and the block may each be arcuate with its center of curvature in one position of the guide 83 lying in the pivotal axis of the pitrnan 42 afforded by its pivotal connection 41 with the needle-bar gate 31.

The guide head 84 extends freely through an opening 85 in the rear wall of the bracket-arm 17 whereby the portion of the guide head containing the guideway 83 is disposed at the rear of the bracket-arm. The guide head 84 is secured by a screw 86 upon an adjusting shaft 87 disposed parallel to the cam shaft 72 and having its longitudinal axis in substantially the horizontal plane.

The adjusting shaft 87 of the guide head 84 is rotatably journaled in a bearing sleeve 88 in the form of a hollow shaft telescopically arranged in a coaxial relation with the adjusting shaft 87 and supported for turning and bodily lateral movements thereof by a supporting member in the form of a fixed bushing 89 secured by oneor more screws, not herein shown, in a bearing boss 90 provided in the front wall of the bracket-arm 17. The opposite ends of the bearing sleeve 88 are fitted to slide in parallel guide slots 91, 91 provided at the opposite ends of the bushing 89, such guide slots being elongated in a direction corresponding to the general direction of the center line of the guideway 83 at its limit of angular movement in which the needle has its maximum lateral throw. The guide slots 91, 91 therefore confine the bearing sleeve 88 and the adjusting shaft 87 journaled in the bearing sleeve through lateral movements in a path corresponding to the path of movement of the block 80 in the guideway 83 at the limit of angular movement of the guide head 84 influencing maximum vibration of the needle. As the lateral movements of the adjusting shaft 87 determine the different neutral positions of nonvibration of the needle, it will be understood that the maximum needle vibration of the needle remains fixed on changing from one to another neutral position of nonvibrationof the needle. This arrangement has the advantage of maintaining cooperative relationship between the needle and the loop-taker within predetermined limits of lateral throw of the needle so that within said limits no provision need be made for imparting compensatingmovements to the loop-taker retrolling mechanism.

In order manually to effect bodily shifting movement of the adjusting shaft-87 and therefore the axis of angular adjustment of the guide head 84, an eccentric 93 is secured by a set screw, not herein shown, :uponthe bearing sleeve 88 Within the ends of the latter. The eccentric 93 is disposed within a recess 94 provided in the bushing 89 between the ends of the bushing containing the guide slots 91, 91, the opposed and parallel walls 95 which (see Figs. 11 and 12) define the recess 94 being substantially transverse to the length of the guide slots 91, 91 diametrically of the bushing. The front end of the bearing sleeve 88 extends beyond the front end of a bushing 89 and rigidly carries an operating arm 96 disposed externally of the front wall of the bracket-arm 17.

By turning the operating arm 96 from one limit of movement as shown in Fig. 11 to the other limit of movement shown in Fig. 12, a combination turning .and sliding movement is imparted to the eccentric 93 within the confines of the walls 95, 95 of the bushing 89 due to the fact that the bearing sleeve 88 which carries the eccentric 93 is confined 'by the guide. slots 91, 91. The described movement of the eccentric 93 carries the hearing sleeve 88 from one end to the other on the guide head 84 bet-weenfixed limits. Obviously the operating arm 96 may be turned a distance less than that of its full throw, if desired. 1

The front end of the adjusting shaft 87 extends forwardly beyond the front end of the bearing sleeve 88 and secured thereto by means not herein described, is a hand lever 98 operable to turn angularly the guide head 84 and thereby change the amplitude of needle vibration. For a more complete description and disclosure of the present needle vibration controlling mechanism, reference may be had to the above noted United States patent application Serial No. 356,928.

In connection with the adjusting levers 96 and 98, it is sufficient to say that the member 96 has cooperating therewith an indicia plate 99 having, as best disclosed in Figs. 1, 7 and 8, three indicia characters 100, 101 and 102 of which the character 100 indicates the central or null position of the needle illustrated by the solid lines of Figs. 9 and 11, while the character 101 indicates an extreme left-hand adjustment of the needle as indicated by the solid lines of Figs. 10 and 12. Character 102 illustrates the extreme right-hand position of the needle which is not illustrated in the present drawings.

In the mid-position of the operating arm 96, illustrated in Fig. 11, the fulcrum axis of the adjusting shaft 87 is disposed at mid-position of its movement within the inclined slots 91, 91 of the bushing 89 and the nonvibration path of the needle is located centrally of its field of vibration as illustrated in Fig. 9 of the drawings. In this position of the lever 96, and when the hand lever 98 employed to control the vibration amplitude of the needle is disposed in its lower position as indicated in Fig. 1, the index arrow 105 carried by the handle 99 (see Fig. 1) points to the zero marking on the handle 98 and this is indicative of the fact that upon operation of the machine the needle will be reciprocated in a fixed path which, as above indicated, is located centrally of its field of vibration. This is due to the position of the guideway 83, as shown in full lines in Fig. 9, which is now disposed in a neutral position wherein the guide block 80 idly traverses said guideway 83 in a path P--P so that no appreciable endwise movement is imparted to the pitman 42. If the hand lever 98 is now turned in a counterclockwise direction as viewed in Fig. l, the guideway 83 will be correspondingly turned angularly into a position of axial influence upon the pitman 42, the center of the guide block 89 now traversing a path P P which extends equal distances to opposite sides of and intersects the angular adjustment of central axis of the guideway 83. Consequently, this action will effect the action of the needle so that the throw of the needle will be at opposite sides of its neutral path of reciprocation in a symmetrical manner. In the described position of the operating arm 96, any positions of the hand lever 98 from zero to maximum throw of the needle will be visually indicated by the index figures carried by the member 98 and the arrow 105 of the member 99.

When the operating arm 96 is turned to its right-hand limit of its movement (see Fig. 12) while the hand lever 98 is in the position illustrated in Fig. l the fulcrum axis of the adjustment shaft 87 will be laterally displaced in a direction corresponding substantially to the length of the guideway 83 that is in substantially the path P, P illustrated in Fig. 9. As hereinbefore explained, this is due to the fact that the guide slots 91, 91 are elongated in a direction substantially corresponding to the path P P Referring now to Fig. 10, it will be understood that the lateral shifting of the adjusting shaft 87 from the position illustrated in Fig. 9 has displaced the fulcrum or central axis of the guideway 83 into coincidence with the lower limit of movement of the center of the guide block 84. Consequently, operation of the hand lever 98 now effects angular adjustment of the guideway 83 about.

said lower point and the guide block 80 has a path of travel bearing from its neutral path P P t o its path P P of maximum influence upon the pitman 42, the neutral'path of reciprocation of the needle being entirely at the left-hand side of its field of vibration as shown in Fig. 10. i

By the same token, if the handle 96 is moved to its extreme left-hand position of the said indicia device 99, the needle would be shifted to its extreme right-hand position and, thus, the neutral path of reciprocation of the needle will be entirely at the right-hand side of the field of operation all of which is disclosed and described in the above noted pending United States patent'application Serial No. 356,928.

From the above, it is to be understood that the present machine as so far described is characterized by having a rotary pattern-cam 64 which is adapted to impart lateral zigzag movements to the needle 30. This cam mechanism is designed in such a manner that various cams may be substituted for the purpose of providing different types of ornamental zigzag stitches. For example, the cam 64 disclosed in Figs. 9 and 10 of the patent drawings is adapted to produce a conventional zigzag stitch whenever the handle 98 is shifted away from its zero position, but, of course, other cams having different peripheral configurations may be substituted for the cam 64 so as to produce various types of motion patterns for the needle. However, in addition to being cam actuated the present machine is provided with means for altering the amplitude oflateral needle vibration and for varying the null or nonvibration position of the needle. In other words, the various selected cams may be employed for imparting divers patterns of lateral motion to the needle but at the same time the amplitude of this motion, as well as the nonvibration position of the needle, may be varied by movement of the handles 96 and 98.

In order to prevent wear of the cam follower 63 and the cam 64 during the time that the machine is adjusted for straight line stitching the present invention contemplates the provision of a cam follower lifting device in the form of a hand lever 106 whose intermediate portion is apertured at 107 so that the member may be rotatably secured upon a pin 108 mounted within an aperture 109 formed in the portion 61 of the bell-crank lever arm 60. The lifting lever 106 is provided at its lower end with a finger portion 110 which, when the lever is turned in a counterclockwise direction as viewed in Fig. 4, is adapted to engage an inclined abutment block 111 formed upon the side wall of the bracket-arm 17. As the finger portion 110 engages the inclined abutment member 111 it will urge the member 61 to move in a counterclockwise direction about its pivot pin 51 whereby the cam follower portion 63 will rise out of contact with the cam 64 so that during straightaway stitching of the machine the cam 64 will not engage the cam follower 63.

As may be observed from Figs. 4 and 5, the lever 106 is provided with a pair .of detent-receiving notches 112 and 113 which are adapted to receive a detent pin 114 slidably disposed within an aperture 115 formed within the member 61. A spring 116 located within the bore 115 urges the detent 114 toward the lever 106 while a set screw 117 maintains the spring in its proper position. From this it is to be understood that the detent-receiving notches 112 and 113 respectively lock the handle member 106 in its operative or inoperative positions relative to the inclined abutment block 111.

For reasons which will be hereinafter set forth, the above noted cam follower 63 is formed upon the lower portion of a hand lever 120 which, like the cam follower lifter lever 106, is apertured as at 121 so as to be pivotally secured upon the. pin 108 carried by the member 61. The member 120 is also provided with a pair of detent-receiving notches 122 and 123 of which each is. adapted to be engaged by a detent member 124 located within a bore 125 of the member 61 so as to be biased by a spring 126 toward the member 120. A set screw 127 maintains the spring 126 in its proper position. From l gasses this it is to be understood that the detent-receiving notches 122 and 123wi1l function respectively Ltomain tain the member 120 either in its inoperative or operative cam follower lever member l illh'aving a configuration and a construction substantially similar to that ofthe lever 120. By referring particularly to Fig. '3, it is to be observed that thereare five of these levers 140 of which each is pivotally mounted upon apin '141carried between spaced portions 142 and 143 of the hell-crank arm 60 so that each of the lever members l -itl'may be shifted about the pin in the same manner as the above noted lever member 120. Cooperating with each of these levers 140 isra spring-biased detent pin, designated by thenum'era'l 141i, and each of these pins is constructed and is'adapted to operate in the exact same manner as is the .above 'not'ed pin I24.

Each of the members 140 is adapted to be shifted about the pin 1'41 independently of its associated members and it is designed in the manner of the aforesaid lever 120 to engage an oppositely disposed one of the five rotary cams 132 when the lever is in one position and to be disposed out of contact with the cam when the lever isin its retracted or inoperative position in the same manner as the lever arm 120.

From this it is to be understood that the levers 140 function in the same manner as the lever 120 to cooperate with their oppositely disposed cams 132 and, as a matter of fact, an operator may select any one of the available six cams for operation at any one time or, in the alternative, any combination of these cams may be operatively employed simultaneously merely by throwing the appropriate lever arms into their operative positions. Thus, the present machine is designed to produce a large number of different ornamental stitch patterns as dictated by the peripheral cam portions of the various six cams. Furthermore, various combinations of these cams may be selected to operate in synchronisrn thus producing cam patterns which are distinctly different from any one of the individual cams themselves. Thus, from one to six cams may be operated either'singularly or in various selected combinations.

The cam follower lifting member 106 when thrown to its operative position wherein its finger portion 110 is upon the inclined abutment member 111 functions to raise all of the six cam followers so that they will not engage any of the cams to the end that the followers will not engage the cams during straight stitching operations.

It will also be appreciated that the hand control levers 96 and 98 which control the bight or amplitude of needlebar vibration will alter the effectiveness of the cams 132 in the exact same fashion that they affect the effectiveness of the cam 64 to the end that these cams may be rendered ineffective by positioning the bight control arm 93 in its so-called zero position, and the width of the stitch pattern produced by any one or a combination of these cams may be affected by the proper adjustment of the lever '96 in the fashion as described hereinabove in connection with the operation of cam 64.

?It is to be understood that the above described groups of cams are in effect intelligence record-canying means having a plurality of different -response producing records while the various cam follower elements 120 and 140 are in effect individual intelligence pick-up devices corresponding to each of the response-producing records for justed about its cam shaft.

sensing and responding to said records in reactionto the? relative movements between the pick-up means and the record-carrying means;

with its connection means constitutes a transmission mechnism for jshifting'the needle sidewise in conformance with the integrated .record response, and the elements 96 and .98 constituteoperator-influenced means for varying theeffect of the various recordrcarryin'g means.

In order to provide further patterns of ornamental" stitches the present invention contemplates the provision,

of means whereby a needle-controlling cam may be admay be replacedlby a cam (see Fig. 13) which is provided with two notches 152 and 153, either of which may receive the cam-shaft locating pin 73. For purposes of convenience. these notches may be labeled on the cam by the letters A and B. From Fig. 13 it may be observed that the notches 1'52 and 153 are disposed adjacent dissimilar portions of the cam periphery so that the cam .150 may be mounted upon the shaft 72 in two different effective positions relative to the other cams- 132. Thus, the cam '1'50 may be adjusted about the shaft '72 and relative to the cams 132 to the end that such an "adjustment will affect a new ornamental stitch,

pattern whenever the cam 150 is simultaneously em ployed in conjunction with any combination of the cams 132.

Naturally, additional pin-receiving notches may be provided'in cam 1'50s'o as to provide for further adjustment of the cam about its shaft '72. Such a relative phase shifting of the cams will result in an alteration of the integrated record response of the bell-crank lever arm 49 with the result that a different ornamental stitch will be produced.

Having thus described the nature of theinvention, what I claim herein is:

1. An ornamental stitch sewing machine comprising,

a frame, a needle mounted in said frame for endw ise reciprocation and for sidewise movements transversely of the direction of reciprocation, intelligence recordcarrying means carried by said frame and having a .plurality of different response-producing records, means for sensing and responding to at least a pair of said records during a continuous predetermined stitching cycle, said last mentioned means including an individual intelligence pick-up device provided for each of said response-producing records for sensing and responding to its associated record in reaction to relative movements between said pick-up device and said record-carrying means, means producing such relative movements in synchronism with the needle reciprocating movements during said cycle, means permanently aligning each pick-up device for sensing and responding to its associated record only, trans mission mechanism connected with said needle for shifting said needle sidewise, means connecting each of said pick-up devices with said transmission means, and -oporator-influenced means carried by said frame for individually rendering each of said pick-up devices operative and inoperative relative to its associated record, and whereby a combined record response may be transmitted to said transmission means and to said needle by rendering operative .two or more of said pick-up devices.

2. An ornamental stitch sewing machine comprising,

a frame, a needle mounted in said frame for endwise reciprocation and for sidewise movements transversely of the direction of reciprocation, means connected to said needle for shifting the needle sidewise, a plurality of cylindrical rotary cams mounted upon said frame for rotation about a fixed cormnon axis, means for rotating said cams in synchronism with the needle reciprocating movements, aiplur'ality of cam-tracking elements of which 75.,

each includes an arm and of which each element corre- .Also, the bell-crank lever mem ber 49-60'is essentially a mechanism for integrating a plurality of the record responses, while the pitman 421 For example, the cam '64,

sponds to a respective one of said cams-for sensing and responding to its associated cam in response to the move ments of the cam, means supporting each of said elements upon said frame for shifting movements relative to and independently of its associated elements, means permanently aligning each of said elements for sensing and responding to its associated cam only, and operatorinfluenced means carried by said frame for selectively establishing an operative connection between said first mentioned means and each of said elements whereby said needle may be shifted sidewise in conformance with selected cam responses of said elements.

3. An ornamental stitch sewing machine comprising,

a frame, a needle mounted in said frame for endwise reciprocation and for sidewise movements transversely of the direction of reciprocation, a pitman connected to said needle for shifting the needle sidewise, a plurality of cylindrical rotary cams mounted upon said frame for rotation about a fixed common axis, means for rotating said cams in synchronism with the needle reciprocating movements, a plurality of cam-tracking elements each corresponding to a respective one of said cams means permanently aligning each of said elements to movement in a single plane, means connecting each of said elements with said pitman thereby to actuate the latter in response to movements of said cams, means for individually shifting each of said elements into and out of cam-tracking relation with its associated cam, said last mentioned means including a plurality of handles each being connected to a respective one of said cam-tracking elements, and spring means carried by said frame and biasing said cam-tracking elements toward engagement with said cams.

4. An ornamental stitch sewing machine comprising, a frame, a needle mounted in said frame for endwise reciprocation and for sidewise movements transversely of the direction of reciprocation, a pitman connected to said needle for shifting the needle sidewise, a plurality of cylindrical rotary edge cams mounted on said frame for'rotation about a fixed common axis, means for rotating said cams in synchronism with the needle reciprocating movements, a plurality of cam-tracking elements all pivotally mounted about a common axis with each element corresponding to a respective one of said cams, means permanently aligning each element in radial relation with a respective one of said cylindrical cams, means connecting each of said elements with said pitman thereby to actuate the latter in response to movements of said cams, means for individually shifting each of said elements about said common axis and relative to its associated elements and into and out of cam-tracking position, said last mentioned means including a plurality of handles all pivotally mounted about a common axis and each being connected to a respective one of said camtracking elements, and spring means carried by said frame and biasing said cam-tracking elements toward engagement with said cams.

ornamental stitch sewing machine comprising, a frame, a needle mounted in said frame for endwise reciprocation and for sidewise movements transversely of the direction of reciprocation, a pitman connected to said needle for shifting the needle sidewise, a lever pivotally mounted on said frame and about a fixed axis and connected with said pitman by means of a link, a plurality of rotary cams mounted upon said frame for rotation about a fixed common axis, means for rotating said cams in synchronism with the needle reciprocating movements, a plurality of cam-tracking elements all pivotally mounted about a common axis with each element corresponding to a respective one of said cams, means permanently aligning each of said elements in radial relation with a respective one of said cams, means connecting each of said elements with said lever so as to shift the latter about its axis in response to the move ments of said cams, means for individually shifting each of said elements about said common axis and relative a hollow bracket-arm terminating at its free end in a head, a needle mounted in said head for endwise, reciprocation and for sidewise movements transversely of the direction of reciprocation, a rotary shaft extending lengthwise, of and withinsaid bracket-arm and connected with said needle for reciprocating the latter, a pitman connected to said needle for shifting the needle sidewise, a lever pivotally mounted within said bracket-arm and about a fixed axis and connected with said pitman by means of a link, a cam shaft mounted within said bracketarm and transversely'of said rotary shaft, gears operatively connecting said two shaft's, 'a plurality of rotary cylindrical edge cams disposed within said'bracket-arm v and mounted upon'and for rotation with said cam shaft,

a plurality of cam-tracking elements all disposed within said bracket-arm with each element corresponding to a respective one ofsaid cams, means supporting each of said elements upon said frame for shifting movements relative to and independently of its associated elements, means'permanently aligning each of said elements for tracking and responding to its associated cam, means connecting each of said cam-tracking elements with said lever so as to shift the latter about its axis in response to thetmovements of said cams, means for individually shifting each of said cam-tracking elements into and out of cam-tracking relation with its associated cam, said last mentioned means including a plurality of handles of which each is carried upon said lever and is connected to a respective one of said cam-tracking elements and projects out of the bracket-arm through an aperture provided in the bracket-arm, and, springmeans carried upon said bracket-arm and biasing said cam-tracking elements toward engagement with said cams.

7. An ornamental stitch sewing machine comprising, a hollow bracket-arm terminating at its free end in a head, a needle mounted in said head for endwise reciprocation and for sidewise movements transversely of the direction of reciprocation, a rotary shaft extending lengthwise of and within said bracket-arm and connected with said needle for reciprocating the latter, a pitman connected to said needle for shifting the needle sidewise, a lever pivotally mounted within said bracket-arm and about a fixed axis and connected with said pitman by a link, a cam shaft mounted within said bracket-arm and transversely of said rotary shaft, gears operatively connecting said two shafts, a plurality of rotary cylindrical edge cams disposed within said bracket-arm and mounted upon and for rotation with said cam shaft, a plurality of cam-tracking elements disposed within said bracket-arm with each of said elements being carried by said lever and corresponding to a respective one of said cams for tracking the same, means supporting each of said elements upon said lever for shifting movements relative to and independently of its associated elements,

means permanently aligning each of said elements for movement in a single plane, means for individually shifting each of said elements into and out of camtracking relation with its associated cam, said last mentioned means including a plurality of handles of which each is carried upon said lever and is connected to a respective one of said elements and projects out of the bracket-arm through an aperture provided in the bracketarm, and spring means carried by said bracket-arm and biasing said elements toward engagement with said cams.

8. An ornamental stitch sewing machine comprising, a hollow bracket-arm terminating at its free end in a irec on rec p o t n, w o: h t ar tsn es lengthwise df'and within said manta-m andiconne'ctedf withj said needle for reciprocating-thelatter; a "pitman connected to said needle. for fthe needlesidewis'e; a lever pivotally mounredwiflnn prackenrnr and about a fixed axis and connected withsaid pitnranby means of a link, aicam shaftmountedw ithin saidbracketarm and transversely of said rotary shaft, gears operatively connecting said two s'hatts, a plurality of rotary cylindficaledge cams disposed said bracket-arm and mounted upon and for rotation with saidcam shaft, aplurality ot cam-tracking elements disposed within said bracket-arm and 'pivotally mounted about a'common axis with each of said elements corresponding to a respective one of said oams, means permanently aligning each of sai'd'elements inradial relation with a respective one of said 'carns, means connectingeach ofsaid elements with said. lever so as to shift the latter about its axis 'iniresponse to the movements of said cams, meansfor individually pivoting each of said elements about said common axis thereby to shift such element into and out of cam-tracking position with its associated cam, said last mentioned means including a plurality of handles of which each is carried 'upon said lever and is connected to a respective one of said elements and projects out of the bracket-arm through an aperture provided in the bracket-arm, spring means carried by said bracket-arm and biasing said elements toward engagement withsaid cams, a pin carried by said pitman, an angularly adjustable guideway carried byjsaid bracket-arm and receiving said pin for translating lateral vibrations of the pitman into endwise movements, and means mounted upon said bracket-arm for angularly adjusting said guideway thereby to alter thepattern of endwise pitman movements.

'9. An, ornamental stitch sewing machine comprising, a frame, a needle mounted in' saidvframe for endwise reciprocation and for sidewise movements transversely of the direction of reciprocation, a plurality of adjacently disposed rotary edge cams mounted on said frame for rotation about a common axis, means for rotating said cams in synchronism with the needle reciprocating movements, a lever ,pivotally secured upon said frame and about an axis disposed in parallel relation with the cam axis, and being connected with said needle so -as to shift,

the latter sidewise, a spring carried by said frame and biasing said lever toward saidcams, aplurali'ty of camtracking elements pivotallymoun-ted upon said lever and about a common axis disposed in parallelism with said cam axis with each element corresponding to a respective one of said cams, means permanently aligningeach'of said elements in radial relation with a respective one of said edge cams, and means for individually pivoting each of said cam-tracking elements about-its axis thereby to shift such element into and out of, cam-tracking position with its associated edge cam, said last mentioned means including a-plurality of handles of'which each is connected to a respective one of said elements.

10. An ornamental stitch sewing machine comprising, a frame, a needle mounted in said frame for endwise reciprocation and for sidewise movements transversely of the direction'of reciprocation, a pair of rotary .cams mounted upon said frame, means rotating said cams in sates-as synchronism with the needle, reciprocating movements,

camftracking means carried-bysaid frame for tracking and'responding to said-pair of cams during a continuous predetermined stitching cycle, transmission mechanism cionnecting 'said ,cam-trackingmeans with said needle forshift'ing'-said needle sidewise in conformance with the combined cam responses-of said cam-tracking means, andj'means enabling said two cams to be phase-shifted relativelto each other thereby to alter the stitch patterns performed by the needle.

11. An ornamental stitch sewing machine comprising, a frame, a needle mounted in said frame for endwise reciprocation and for, sidewise movements transversely of the direction of reciprocation, a pair of rotary edge cams mounted upon said frame and about a common axis, means rotating said cams in synchronism with the needle reciprocating movements during a continuous pre determined stitching cycle, cam tracking means carried by said frame for tracking and responding to both of said cams during said continuous cycle, transmission mechanism connecting said cam tracking means with said needle for shifting said needle sidewise in conformance with the combined cam responses of said carntrackingmeans, and means enabling one cam to be relocated about said common cam axis and relative to its associated cam thereby to alter the stitch patterns p6 formed by the needle.

12. An ornamental stitch sewing machine comprising, a frame, a needle mounted in said frame for endwise reciprocation and for sidewise movements transversely of the direction of reciprocation, an oscillatable lever. pivotally mounted about an axis fixed by said frame, said leverconnectedto said needle for. shifting the latter sidewise, aplurality of cylindrical rotary edge cams mounted upon said frame for rotation about a fixed common'axis,

means rotating said cams in synchronism with the needle reciprocating movements, a plurality of cam-responding elements each corresponding to a respective one of said cams, means mounting each of said elements upon said lever for movements relative to said lever whereby each.

element may be shifted into and out of cam-responding relation with its associated cam, spring means biasing said lever toward said cams, manually operable means carried by said lever for releasably locking each of said elements against movement relative to said lever and in cam-responding relation with its associated cam whereby saidjneed'le may be shifted sidewise in conformance with selected cam responses of said 'elements,andjmeans permanently aligning each of said cam-responding elements for responding to its associated cam only. 7

References Cited in the file of this patent UNITED STATES PATENTS Great Britain Of 0 

